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/*
* Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8136421
*
* @requires vm.jvmci & vm.compMode == "Xmixed"
* @requires vm.opt.final.EliminateAllocations == true
* @requires vm.opt.StressUnstableIfTraps == null | !vm.opt.StressUnstableIfTraps
*
* @comment no "-Xcomp -XX:-TieredCompilation" combination allowed until JDK-8140018 is resolved
* @requires vm.opt.TieredCompilation == null | vm.opt.TieredCompilation == true
*
* @library / /test/lib
* @library ../common/patches
* @library /testlibrary/asm
* @modules java.base/jdk.internal.misc
* @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot
* jdk.internal.vm.ci/jdk.vm.ci.code
* jdk.internal.vm.ci/jdk.vm.ci.code.stack
* jdk.internal.vm.ci/jdk.vm.ci.meta
*
* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm -Xbatch -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame3
* -XX:+DoEscapeAnalysis
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=true
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
* compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
* @run main/othervm -Xbatch -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame3
* -XX:+DoEscapeAnalysis
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=false
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
* compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
* @run main/othervm -Xbatch -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame3
* -XX:+DoEscapeAnalysis
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=true
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
* compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
* @run main/othervm -Xbatch -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -XX:CompileCommand=exclude,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::check
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame
* -XX:CompileCommand=dontinline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame2
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::recurse
* -XX:CompileCommand=inline,compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest::testFrame3
* -XX:+DoEscapeAnalysis
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst=false
* -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
* compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
*/
package compiler.jvmci.compilerToVM;
import compiler.jvmci.common.CTVMUtilities;
import compiler.testlibrary.CompilerUtils;
import compiler.whitebox.CompilerWhiteBoxTest;
import jdk.test.lib.Asserts;
import jdk.vm.ci.code.stack.InspectedFrame;
import jdk.vm.ci.hotspot.CompilerToVMHelper;
import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
import jdk.vm.ci.meta.ResolvedJavaMethod;
import jtreg.SkippedException;
import jdk.test.whitebox.WhiteBox;
import java.lang.reflect.Method;
public class MaterializeVirtualObjectTest {
private static final WhiteBox WB;
private static final boolean INVALIDATE;
private static final int COMPILE_THRESHOLD;
private static final Method MATERIALIZED_METHOD;
private static final Method NOT_MATERIALIZED_METHOD;
private static final Method FRAME3_METHOD;
private static final ResolvedJavaMethod MATERIALIZED_RESOLVED;
private static final ResolvedJavaMethod NOT_MATERIALIZED_RESOLVED;
private static final ResolvedJavaMethod FRAME2_RESOLVED;
private static final ResolvedJavaMethod FRAME3_RESOLVED;
private static final boolean MATERIALIZE_FIRST;
static {
Method method1;
Method method2;
WB = WhiteBox.getWhiteBox();
try {
method1 = MaterializeVirtualObjectTest.class.getDeclaredMethod("testFrame",
String.class, int.class);
method2 = MaterializeVirtualObjectTest.class.getDeclaredMethod("testFrame2",
String.class, int.class);
FRAME3_METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod("testFrame3",
Helper.class, int.class);
} catch (NoSuchMethodException e) {
throw new Error("Can't get executable for test method", e);
}
ResolvedJavaMethod resolved1;
resolved1 = CTVMUtilities.getResolvedMethod(method1);
FRAME2_RESOLVED = CTVMUtilities.getResolvedMethod(method2);
FRAME3_RESOLVED = CTVMUtilities.getResolvedMethod(FRAME3_METHOD);
INVALIDATE = Boolean.getBoolean(
"compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
COMPILE_THRESHOLD = CompilerWhiteBoxTest.THRESHOLD;
MATERIALIZE_FIRST = Boolean.getBoolean(
"compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.materializeFirst");
MATERIALIZED_RESOLVED = MATERIALIZE_FIRST ? resolved1 : FRAME2_RESOLVED;
NOT_MATERIALIZED_RESOLVED = MATERIALIZE_FIRST ? FRAME2_RESOLVED : resolved1;
MATERIALIZED_METHOD = MATERIALIZE_FIRST ? method1 : method2;
NOT_MATERIALIZED_METHOD = MATERIALIZE_FIRST ? method2 : method1;
}
public static void main(String[] args) {
int levels[] = CompilerUtils.getAvailableCompilationLevels();
// we need compilation level 4 to use EscapeAnalysis
if (levels.length < 1 || levels[levels.length - 1] != 4) {
throw new SkippedException("Test needs compilation level 4");
}
try {
new MaterializeVirtualObjectTest().test();
} catch (MaterializationNotSupported e) {
Asserts.assertTrue(Thread.currentThread().isVirtual());
}
}
private static String getName() {
return "CASE: invalidate=" + INVALIDATE + ", materializedMethod="
+ (MATERIALIZE_FIRST ? "testFrame" : "testFrame2")
+ ", notMaterializedMethod="
+ (MATERIALIZE_FIRST ? "testFrame2" : "testFrame");
}
private void test() {
Asserts.assertFalse(WB.isMethodCompiled(MATERIALIZED_METHOD),
getName() + " : materialized method is compiled");
Asserts.assertFalse(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD),
getName() + " : not materialized method is compiled");
for (int i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
testFrame("someString", i);
}
Asserts.assertTrue(WB.isMethodCompiled(MATERIALIZED_METHOD), getName()
+ " : materialized method not compiled");
Asserts.assertTrue(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD),
getName() + " : not materialized method not compiled");
testFrame("someString", /* materialize */ CompilerWhiteBoxTest.THRESHOLD);
// run second test types
for (int i = 0; i < CompilerWhiteBoxTest.THRESHOLD; i++) {
testFrame("someString", i);
}
Asserts.assertTrue(WB.isMethodCompiled(MATERIALIZED_METHOD), getName()
+ " : materialized method not compiled");
Asserts.assertTrue(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD),
getName() + " : not materialized method not compiled");
testFrame("someString", /* materialize */ CompilerWhiteBoxTest.THRESHOLD + 1);
}
private void testFrame(String str, int iteration) {
Helper helper = new Helper(str);
testFrame2(str, iteration);
Asserts.assertTrue((helper.string != null) && (this != null)
&& (helper != null), String.format("%s : some locals are null", getName()));
}
private void testFrame2(String str, int iteration) {
Helper helper = new Helper(str);
Helper helper2 = new Helper("bar");
testFrame3(helper, iteration);
Asserts.assertTrue((helper.string != null) && (this != null) && helper.string == str
&& (helper != null), String.format("%s : some locals are null", getName()));
Asserts.assertTrue((helper2.string != null) && (this != null)
&& (helper2 != null), String.format("%s : some locals are null", getName()));
}
private void testFrame3(Helper outerHelper, int iteration) {
Helper innerHelper = new Helper("foo");
recurse(2, iteration);
Asserts.assertTrue((innerHelper.string != null) && (this != null)
&& (innerHelper != null), String.format("%s : some locals are null", getName()));
Asserts.assertTrue((outerHelper.string != null) && (this != null)
&& (outerHelper != null), String.format("%s : some locals are null", getName()));
}
private void recurse(int depth, int iteration) {
if (depth == 0) {
check(iteration);
} else {
Integer s = new Integer(depth);
recurse(depth - 1, iteration);
Asserts.assertEQ(s.intValue(), depth,
String.format("different values: %s != %s", s.intValue(), depth));
}
}
private static void materializeVirtualObjects(InspectedFrame f, boolean invalidateCode) {
try {
f.materializeVirtualObjects(invalidateCode);
} catch (IllegalArgumentException e) {
throw new MaterializationNotSupported(e);
}
}
private void checkStructure(boolean materialize) {
boolean[] framesSeen = new boolean[2];
Object[] helpers = new Object[1];
CompilerToVMHelper.iterateFrames(
new ResolvedJavaMethod[] {FRAME3_RESOLVED},
null, /* any */
0,
f -> {
if (!framesSeen[1]) {
Asserts.assertTrue(f.isMethod(FRAME3_RESOLVED),
"Expected testFrame3 first");
framesSeen[1] = true;
Asserts.assertTrue(f.getLocal(0) != null, "this should not be null");
Asserts.assertTrue(f.getLocal(1) != null, "outerHelper should not be null");
Asserts.assertTrue(f.getLocal(3) != null, "innerHelper should not be null");
Asserts.assertEQ(((Helper) f.getLocal(3)).string, "foo", "innerHelper.string should be foo");
helpers[0] = f.getLocal(1);
if (materialize) {
materializeVirtualObjects(f, false);
}
return null; //continue
} else {
Asserts.assertFalse(framesSeen[0], "frame3 can not have been seen");
Asserts.assertTrue(f.isMethod(FRAME2_RESOLVED),
"Expected testFrame2 second");
framesSeen[0] = true;
Asserts.assertTrue(f.getLocal(0) != null, "this should not be null");
Asserts.assertTrue(f.getLocal(1) != null, "str should not be null");
Asserts.assertTrue(f.getLocal(3) != null, "helper should not be null");
Asserts.assertTrue(f.getLocal(4) != null, "helper2 should not be null");
Asserts.assertEQ(((Helper) f.getLocal(3)).string, f.getLocal(1), "helper.string should be the same as str");
Asserts.assertEQ(((Helper) f.getLocal(4)).string, "bar", "helper2.string should be foo");
if (!materialize) {
Asserts.assertEQ(f.getLocal(3), helpers[0], "helper should be the same as frame3's outerHelper");
}
return f; // stop
}
});
Asserts.assertTrue(framesSeen[1], "frame3 should have been seen");
Asserts.assertTrue(framesSeen[0], "frame2 should have been seen");
}
private void check(int iteration) {
// Materialize virtual objects on last invocation
if (iteration == COMPILE_THRESHOLD) {
// get frames and check not-null
HotSpotStackFrameReference materialized = CompilerToVMHelper.iterateFrames(
new ResolvedJavaMethod[] {MATERIALIZED_RESOLVED},
null /* any */,
0,
f -> (HotSpotStackFrameReference) f);
Asserts.assertNotNull(materialized, getName()
+ " : got null frame for materialized method");
Asserts.assertTrue(materialized.isMethod(MATERIALIZED_RESOLVED),
"Expected materialized method but got " + materialized);
InspectedFrame notMaterialized = CompilerToVMHelper.iterateFrames(
new ResolvedJavaMethod[] {NOT_MATERIALIZED_RESOLVED},
null /* any */,
0,
f -> f);
Asserts.assertNE(materialized, notMaterialized,
"Got same frame pointer for both tested frames");
Asserts.assertTrue(notMaterialized.isMethod(NOT_MATERIALIZED_RESOLVED),
"Expected notMaterialized method but got " + notMaterialized);
Asserts.assertNotNull(notMaterialized, getName()
+ " : got null frame for not materialized method");
Asserts.assertTrue(WB.isMethodCompiled(MATERIALIZED_METHOD), getName()
+ " : materialized method not compiled");
Asserts.assertTrue(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD),
getName() + " : not materialized method not compiled");
// check that frames has virtual objects before materialization stage
Asserts.assertTrue(materialized.hasVirtualObjects(), getName()
+ ": materialized frame has no virtual object before materialization");
Asserts.assertTrue(notMaterialized.hasVirtualObjects(), getName()
+ ": notMaterialized frame has no virtual object before materialization");
// materialize
materializeVirtualObjects(materialized, INVALIDATE);
// check that only not materialized frame has virtual objects
Asserts.assertFalse(materialized.hasVirtualObjects(), getName()
+ " : materialized has virtual object after materialization");
Asserts.assertTrue(notMaterialized.hasVirtualObjects(), getName()
+ " : notMaterialized has no virtual object after materialization");
// check that materialized frame was deoptimized in case invalidate=true
Asserts.assertEQ(WB.isMethodCompiled(MATERIALIZED_METHOD), !INVALIDATE, getName()
+ " : materialized method has unexpected compiled status");
// check that not materialized frame wasn't deoptimized
Asserts.assertTrue(WB.isMethodCompiled(NOT_MATERIALIZED_METHOD), getName()
+ " : not materialized method has unexpected compiled status");
} else if (iteration == COMPILE_THRESHOLD + 1) {
checkStructure(false);
checkStructure(true);
}
}
private class Helper {
public String string;
public Helper(String s) {
this.string = s;
}
}
static class MaterializationNotSupported extends RuntimeException {
public MaterializationNotSupported(Throwable cause) {
super(cause);
}
}
}
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